Shuttle-guard for looms



E. EGLI ET AL SHUTTLE GUARD FOR LOOMS J ne 30, 1931.

Filed Nov. 18, 1929 Mare/wraps:

-' Patented .lune Y UNITED'STATES,

EDUARJ) EGLI AND. EDWIN salmon, or vmiter, swrmzr nmnvnl essrertons 'To MFA S'GHINENFABRIK m'irr VORMALS CASPAR HONE GTGER; or 'IIRUTI, SWITZERLAND I snUrrLn-enARD :Foiz Looms Application filed November 18 1929, Serial No.' 4( )8 ',10i9, and Switzerland November 30, 2:

I The present invention relates to shuttle stop, motions for fixed reed .and loose reed I .looms of every kind in which,'whena shuttle has irregularly enteredtheshuttle-box, an-

abutment, on the movement ofthe lathe towards the beam, effects-the disconnection and stopping of the loom.

WVith' a known shuttle stopmotion of this kind every 'timethe shuttleenters correctly and every time the lathejisstar't'ed a pusher is actuated, which with loo ms running at high speed "can easily Ycause' disturbances.

' Also with this known motion an opening is necessary in front of the shuttle-box, so that the shuttle may not bear upon the entire length of the edge of the box and thus may not be too quickly worn out.

"In order to avoid these disadvantages the improved shuttle stop motion comprises a shaft rotatably supported in bearings, two vertical feeler arms fixed to the said shaft and extending to both sides Within the shuttle box in the path of' swing ofthe shuttle when not completely entered, a vertically movable stopping lever in driving connection with the said feeler arms, a vertical push rod pivoted to the stopping lever and having a push knob capable of being aligned with a push knob of the lathe when loweredby one of the feeler arms and by the stopping lever and a horizontal connection between the push rod and the Weft fork lever which connectionadmits vertical movements of the push rod. With this motion allthe parts are in the posit-ion of rest during the regular operation of the loom and vanywear of the tongues, abutments, and so forth, is avoided, In the front wall of the shuttle-box no opening is necessary. The shuttle lies thereby'uponthe entire length of the edge and is subjected to less wear. The shuttle stop'motio-n' isarranged on both sides of the loom. I

The accompanying drawings illustratea constructional example of the subject matter 5 of the invention, in'which' Fig.1 shows the device in side view as-prepared for operation, with shuttle entered en-- 'y lthe shuttle-box in the foremost position of the lathe;

Fig. 2 is a view similar to 1 showing h arts when the-ala is'not' completely? I entered, and r Fig. Bis aplan showing thelathef 515d est tion ofjthe shuttle as in Fig.2.

3 for the stopping lever 4: 5 is the lathe su'pi portjinfits foremost position, 6 the lathe to I I I 69 stoppingknob 8 cast thereto; 91s the front gether. with the shuttlebox plate? and'the I wall o'fthe shuttle box; 10 is the picker in'i'ts not fully entered into the box, Upon alshaft' I extreme position; 11a shows the shuttle wlien it has completely entered'th'e shuttle box; 116

shows the position-of the shuttle when it has 13; extending from one side ofth'e loom to the. p 1 other and rotatably supportedin bearings;

12; o'f'which only that one is indicatedfwhi ch.

'is' on the Work side of the loom, are fixedv feeler-arym's 14m and 14b extending to both h sideswithin the shuttle-box in the pathljof -I swing of the shuttle when notcompletely elf-.1

tered; Upon the same shaft a lever 1 5is r0 tatably; supported on the same side as the l0in'-$topping' apparatusfwhioh'. lever fby means of a spring 16 andan adjustable screw 17 remains in connection with the feelerar mf l taand therefore follows the movements of the latter. Upon a'pin, 18 of thelever 1-51153 'mounted a push rod19 having a push knobl',

20.; The push rod19 isagain looselyco-nnect ed by a guidepin 21 with the usual-knock off le'ver 22- in such a manner that the pin 21- is able to slide in a slot23. Thelever 22 sup ported rotatably about ra. pinQ LI upon the breast beamA tensilespring25secured to:

a fixedpoint26 the lever 15 against abutment and'thereby secures the, entire I 1 device inthe position ready for working. I

96@ .;Therrifanner of operation of the device de scribed is as follows: If the shuttle 116 does thenithe former comesfto a standstill behind the feeler-arm 14a left side, or 14?) right side. The arms 14a, 14b are'hereby impelled for.- ward on the forward motion of the lathefi This impulse is transmitted over the spring not enter. completely into the shuttle box 7 16 to the lever 15 and hereby effects a downwardmovement of the push rod 19', or of the push knob 20 connected therewith. This downward movement is limited by the upper closed end of the slot 23 in such a manner that the push knob 20 comes into line with the stopping knob 8 of the forwardly swinging lathe 6 and hereby is impelled forwardly until the knock off lever 22 connected by the guide pin 21 ejects in a generally known manner the stopping lever 4 from the abutment 3 of the breast-beam 2 and thereby efi'ect the stopping of the loom. The spring 16 takes up the eX- cess movement of the feeler-arms 14a, 14b, and the screw 17 serves for the mutual adjustment of the said feeler-arms 14a, 14b and of the stopping lever 15. The spring 16, after the stopping of the loom, brings the device again to the abutment 27 in the correct position for starting working, in which position, when the shuttle 11a has completely entered into the shuttle-box, the stopping knob 8 of the lathe does not engage the push knob 20 of the push rod 19.

What we claim is:

1. A device of the kind described, comprising a shaitt rotatably supported in bearings and extending from side to side of the loom, two vertical feeler arms fixed to the said shaft and extending to both sides within the shuttle box in the path of swing of the shuttle when not completely entered, a vertically movable lever in driving connection with the said feeler arms, a vertical push rod pivoted to the said lever and having a push knob ca pable of being aligned with a push knob of the lathe when lowered. by one of the feeler arms and by the said lever, and a horizontal connection between the push rod and the weft fork lever which connection admits vertical movements of the push rod.

2. A device of the kind described comprising a througl1-going shaft rotatably supported in bearings, two vertical feeler arms fixed to the said shaft and extending to both sides within the shuttlebox in the path of swing of the shuttle when not completely entered, a vertically movable lever rotatably supported upon the said shaft and connected with one of the feeler arms by a spring and an adjustable screw, a vertical push rod pivoted to the said lever and having a push knob capable of being aligned with a push knob of the lathe when lowered by one of the feeler arms and by the said lever, and a horizontal connection between the push rod and the weft fork lever which connection admits vertical movements of the push rod.

In testimony whereof we have aiiiXed our signatures.

EDUARD EGLI. EDWIN SCHOCH. 

